English-born Fiddes says he's flying to Los Angeles to ask a court to order the DNA test, saying: "I think Blanket is mine, but I want final proof. All I want is access if he's my child, to take him out, and spend some time together."

The 32-year-old bodyguard has made the claim before. In 2010 he said he and Michael Jackson were very close and the King of Pop asked him for a sperm donation the year before Blanket was born.

"In 2001 he asked me to donate sperm. I did it because of my own purposes—I wanted to get checked out—and also to help a friend out," said Fiddes.

The bodyguard is a martial arts master. Blanket also loves karate and wears a ponytail just like him.

"He wanted an athletic child," said Fiddes.

He claims he turned down Jackson's offer to pay him over a half-a-million dollars for his sperm. Later, he says, Jackson admitted in a private conversation that he was Blanket's biological father.

The bodyguard denies he's after money from the Jackson family. He has three other children and says he only wants visitation rights with Blanket.

"Now I've got to sit down with my kids and explain to them that they could well have a half-brother," said Fiddes.